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Charles R. Clark
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Ponca City, OK, US
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last 30 patents
Information
Patent Grant
Emulsion breaking using alkylphenol-polyethylene oxide-acrylate pol...
Patent number
5,156,767
Issue date
Oct 20, 1992
Conoco Inc.
Patrick H. Fitzgerald
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Placement process for oil field chemicals
Patent number
4,986,353
Issue date
Jan 22, 1991
Conoco Inc.
Charles R. Clark
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Process for the preparation of fluid loss additive and gel breaker
Patent number
4,986,355
Issue date
Jan 22, 1991
Conoco Inc.
Burton M. Casad
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Inhibition of hydrate formation
Patent number
4,856,593
Issue date
Aug 15, 1989
Conoco Inc.
Robert R. Matthews
F17 - STORING OF DISTRIBUTING GASES OR LIQUIDS
Information
Patent Grant
Method of transporting viscous hydrocarbons
Patent number
4,287,902
Issue date
Sep 8, 1981
Conoco, Inc.
Gifford G. McClaflin
F17 - STORING OF DISTRIBUTING GASES OR LIQUIDS
Information
Patent Grant
Waterflood method using overbased normal alkylaromatic sulfonates
Patent number
3,965,984
Issue date
Jun 29, 1976
Continental Oil Company
Charles R. Clark
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Oil recovery method using overbased waterflood additive containing...
Patent number
3,952,803
Issue date
Apr 27, 1976
Continental Oil Company
Oliver C. Kerfoot
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Method using overbased branched-chain alkylaromatic sulfonates as w...
Patent number
3,933,201
Issue date
Jan 20, 1976
Continental Oil Company
Oliver C. Kerfoot
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...